Social Darwinism and Creationism

Why do so many Social-Darwinists believe in Creation and so many Darwinists believe it is important to help those who are less fortunate?

Even among the robber barons of the 19th century, there was no inconsistency between philanthrophy and capitalism. Creationists were often on the forefront of opposing slavery and eugenics as well as advancing the sufferage movement. On the flip side, I see no inconsistency between helping your neighbor and the less fortunate and believing that species evolve over time. The later relates to moral choices done in one's own lifetime and within one's own circle of influence. The latter has to do with biological changes over eons. Both may be true, but they are true in different ways.